Ring-bushing for interior conduits.



We. 731,426. I v I PATENTED JUNE 2a, 1903. W. F. BOSSERT & P. T.FOXENBERGER.

RING BUSHING FOR INTERIOR GONITUIIITSu AP'PLIOATIQN rILmi FEB. 2. 1903.

N0 MODEL.

' ATTORNEY. i

I 3 whereby held to.

45 invention struck up from sheet metal.

' hl'o. reread llnrrnn Patented June lidflhl,

WILLIAM F. BOSSERT AND FREDERICK T. FOXENBERGER, 0F UTICA, NEWYORK,'ASS/IGNORS TO THE BOSSERT ELECTRIC CONSTRUCTION UOMPANY,

or UTIOA, nnw Yonn.

RlhlC -BUSHWG iron int" srncrrrcnrron forming part or LettersApplication filed February s, 1903. Serial No. 14 1,67

To a-ZZ whom it may concern.- Be itknown that we, WILLIAM F. Bossnn'rand FREDERICK T. at Uticaqin the cou FOXENBERGER, residing nty of lOneida and State a I ofNew York,have invented certain Improvements inRing-Bushings for Interior Conduits,

of which the following is a specification. l The invention about to bedescribed relates to means for holding the ends of interior conto duitsto the distributing-boxes into which they enter. With conduits madeof'iron pipe it is comparatively easy to provide a bushing to secure theends thereof to the walls of the boxes; but there are in use a number ofkinds conduits other than iron, such as the socalled flexible conduitmade from continuous narrow stripsof-metal disposed in a spiral form andalso of the circular loom-conduit I which is made from fiber woven in atubular an form and having a smooth insulated surface.

The flexible conduit varies in diameter, and it has been found difiicultto provide a bushing which will be suitable for holding the same firmlyto the box and central of the hole j it, enters, and the circularloom-conduit is soft and slips easilythrough the ordinary bushing anddoes not stay in place.

The present invention provides means any kind of conduit may he firmlythe distributing-box and approximately central ofthe entering hole, andit, consists or an open ring having a straight cylindrical portionadapted to embrace the end of the conduit and provided with means 5 forentering the orifices in the walls of the box to maintain the conduitapproximately cen tral therewith and always keep it impositionandwithmeans for grasping or holding the a conduit so that it cannot bewithdrawn from no the wall of the box,

all of which I will now proseed to describe, and point out in theclaims. In the drawings which form a part of and illustrate thespecification, Figure l is a perspective view of the ringloushingforming the Fig.

2 is an end view of the ring bushing. Fig. 3 isa side View of thering-bushing attached to the end of a flexible conduit and showing itsrelation to-adistributing-box, a portion of which isshown indotted linesto represents.

ably,

Eldlflli nnnnnirs.

Patent No. 79:1;126, dated June E23, Mahdi,

7. (No modeL? section thereof; and Fig. 4 is a sectional view of adistrihuting-boashowingthe sheetnnetai ring-bushing applied to what isknown as a circular loom-conduit.

' In the drawings, A represents a ring-hush ing struck up from sheetmetal, steel preferin a well-known manner by means of dies. lit is notnecessary to describe allot the operations of manufacture, as they willbe apparent to those-ace uainted with the art.

The rin -bushing it consists of the cylindrical part in, whose sidesterminate in the ears 1) and d; separated by the space 6, across whichand through the ears extends the screw 6. o is a'flange on the rear ofthe partm and joined to the ears, and n p are portions of the fiange,cutout therefrom and hent rearwardly and at right angles thereto. The ringm is adapted to embrace the end of a conduit, as

and the screw e holds the same firmly thereto, while the flange 0 servesas an ahntinent against the wallw ofthe hon B, and the prongs 12 en terthe hole 11 in the hex through which theconduit extends and serve "asthe means to maintain the conduit approrirnntelycea tral of the orifice.I

In Fig. 3, f represents a denihie conduit made from narrow strips ofmetal hentaround in a spiral form in a well-known manner.

Such conduits vary' slightly in diameter, and 80 it is dificult tosecure them properly by the ordinary bushings, as the latter arernade'ofone diameter and when attached to the con duit do not closely, fit thehole t' in the hon, but leave small open spaces from the surface of theconduit into the box, which allows dust and other extraneous rnatter toenter the hex.

The ring is made with a space c wide enough to permit of the grasping;holding of the smallest diameter of conduit eecurely and the screw crnade long enough to allow the closing of the ring upon the largestconduit that canenter thehole t', and at the same time the prongsgc ofthe ring; are on p5 ahled toenter the hole and hecp the con duit in anapproximately central position and hold the flange or abutment 0 closeto the wall oi the hes, so that there will not he any'open space betweenthe edge of the hole rot will take care of the conduits of varyingdiloom-conduit.

ameters within-certain suificient limits.

Fig. 4 shows a ring-bushing A, attached to the end of a conduit or cable5, whose outer covering 25 is what is termed a circular As a matter offact it is a cable-coverin g made or woven in a loom upon a cable andconsists of stout, well-insulated, and fireproof fiber and althoughflexible and soft is comparatively quite st'ifi. The ringbushing A isenabled to grasp the end of this conduit firmly. The flange 0 presses asan abutment against the inner wall of the box, and the prongs 19 extendthrough the hole 1) in the box and keep the conduit approximatelycentral therewith. In this figure the ends of the prongs areshown asbent over the outer wall of the box and as lockingthe ring-bushing tothe box, thus making the fastening more secure.

We claim as our invention- 1. As an article of manufacture, aringbushing consisting of an open cylindrical part terminating in cars,a screw extending through said ears and adapted to contract the saidpart, a flange or abutment at one end of the cylindrical part at a rightangle and integral therewith having a plurality of prongs cut outtherefrom and extending rearwardly.

2. As an article of manufacture, a ring bushing consisting of an opencylindrical par-t terminating in outwardly extending ears, a screwextending through said ears and adapted to contract the said part, aflange or abutment at one end of the said part at a right angletherewith and integral with said part and joined to the ears having aplurality of prongs cut out therefrom and extending rearwardly.

8. As an article of manufacture, a ringbushingdrawn up from asheetofinetalwith an open space and outwardly-extendingears and a screw throughthe same for adjusting the width of the space, joined to a tubular band,one end of which formsa right-angled flange extending from which andintegral therewith are a plurality of prongs at equal distances from thecenter of the ring.

4. In combination, a distributing-box provided with a conduit-hole inone of its walls, a conduit entering said hole with a ring-bushing uponthe end of the conduit having an open space and means for adjusting thewidth thereof, joined to a tubular hand, one end of which has aright-angled flange and rests against-the inner wall of the. box, andprovided with means extending from the band into the conduit-hole forapproximately centraling the same consisting of rearwardly-extendingprongs cut from the said flange.

5. The combination of a distributing-box provided with a conduit-hole inone of its walls, a conduit entering said hole, with a ring-bushingdrawn up from sheet metal upon the end of the conduit, having an openspace and outwardly-extending ears and a screw through the same foradjusting the width of the space, joined to a tubular band, one end ofwhich forms an abutment against the inner wall of the box extending fromwhich into the conduit-hole are a plurality of prongs at equal distancesfrom the center of the ring.

6. The combination of a distributing-box provided with a conduit-hole inone of its walls, a conduit entering said hole, with a ring-bushingdrawn up from sheet metal upon the end of the conduit, having an openspace and outwardly-extending ears and a screw through the same foradjusting the width of the space, joined to a tubular hand, on end ofwhich forms an abutment against the inner wall of the box extending fromwhich into the conduit-hole are a plurality of prongs at equal distancesfrom the center ofi the ring and adapted to lock the ring to the wall ofthe box.

In testimony whereof we have signed our names to this specification, inthe presence of two subscribing witnesses, this 31st day of January,1903.

WILLIAM F. BOSSERT. FREDERICK 'l. FOXENBERGER. Witnesses:

Josnrn C. FRANK, WILLIAM GRAY.

